I am pretty certain most of the current younger smokers had a very good idea of the health implications. Anything that changed from a medical perspective since

I am pretty certain most of the current younger smokers had a very good idea of the health implications. Anything that changed from a medical perspective since I am smoking is that we know by now that a 'smokers lung' is not actually that and most never get it. Otherwise all the risks are well known for 15+ years. Tldr: I don't think people actually care about dying earlier (or more cruel), at least in countries with working or cheap health care.